Today we're going to look at how to find the number of unique sessions over a specific time frame for a rails application. We'll be using the slow-actions gem.

Slow-Actions is great tool for determining the slow areas of a rails application. Since it is built on a rails log parser, it can be used for many other things. For example, here is some standard output from slow-actions when you want to know the speed of different user sessions within a specific date range: